Improvement in gas-meters



UNTTE STATES PATENT OFFICE.

HENRY II. KROMSGIIROEDER AND JOHN F. G. KROMSCHROEDER, OF PRINCESSTERRACE, REGENTS PARK, ENGLAND.

lWl PROVEM ENT IN GAS-NI ETERS.

Specification forming part ol' Letters Patent No. 10.266, dated October'13, 1863.

KROMSCHROEDER and JOHN FREDERICK GUsrAv KEonscHEoEDEn, both of PrincessTerrace, Regents Park, in the county ot' Middlesex, England, subjects ofthe King ot'Hanover, have invented or discovered new and usefulImprovements in the Manufacture otl Gas-Meters; and we, the said HENRYHER- MAN KRoMsoHRoEDEE and JOHN FEEDER- Icx GUs'rAv KRoMscHRoEDEa, dohereby declare the nature ot' the said invention and in what manner thesame is to be performed to be particularly described and ascertained inand by the following statement thereofthat is to say This invention hasfor its object improvements in the manufacture of gas-meters.

In constructing the measuring-drum for a gas-meter it is formed of twoconcentric cylinders, and the annular space between them is divided intoa series of similar measuringcompartments by partitions formed ashereinat'ter explained. It is preferred that the annular space should bedivided into four measuring-compartments, but this is not essential. Thewater-line in the meter is somewhat below the upper part of the innercylinder, and gas is admitted above the waterline into the interior Qt'the inner cylinder. There is a passage formed through the inner cylinderinto each measuring-compartment, and such openings are immediately belowthe points where the partitions join the inner cylinder. In the outercylinder there is an out-- let-passage formed above each partition forthe passage of the gas out ot' the compartments when the lowest end ofthe compartment comes above the water-line in the meter. Interior of thecentral cylinder there is applied or formed a float to support or buoyup themeasuring-drum, but to which, separately, no claim is made.

Having thus stated the nature of our said invention, we will proceed todescribe more fully the manner of performing the same.

In the drawings, Figure l shows an elevation ot' a .gas-meter, partly insection Fig. 2, a transverse section, and Fig. 3 a section through themeasuringdrum.

In each of these 1i gures the same letters of reference are used toindicate the same parts.

ct a is the measuring-drum, which is con structed ot' two cylinders, theouter one, a a, and the inner one, a a. The annular space between thesetwo cylinders is divided into four similar measuri11g-chambers byangular partitions a2 a2. The inner ends of the partitions a2 c2 areconnected to the inner cylinder, a. The 'partitions u? a2, from thepoint where they are connected to the inner cylinder, proceed in atangential or nearly taugential direction toward the outer cylinder, andthen such partitions are bent to an angle, and then their outer edges orends are connected with the outer cylinder, a a, thus produoin gpeculiarly-formed angular measuringchambers around the inner cylinder, aa', as will readily be understood on examining Fig. 3 of the drawings.Interior of the cylinder aa is a hollow ioat, l) b, which is mounted onthe same axis as the measuring-drum, and the measuring-drum is attachedto such axis, c, by arms or spokes. The axis c ot the measuring-drum iscarried by a lever-frame, d d, which is supported by lixed necks or axesc e. On the axis c ofthe measuring-drums is a cog-wheel, which takesinto and drives the cog-wheel f, which revolves on one of the tixednecks or axes e e of the lever-frame d d. To the cog wheel fis xcd abevel-toothed wheel, g, which takes into and drives a beveltoothedwheel, h, ixed on the axis t' of the counting apparatus, by which,notwithstandV ing the measuring-drum moving, the constant driving of theaxis t' of the counting apparatus is insured.

j is the inlet or supply to the meter, through which the gas passes intothe chamber 7c lc when the valve l is open, which it will be so long asthe float m is supported by water in the chamber lo. The gas passes fromthe chamber lo through the pipe u into the chamber o, and also from thepipe n by a bent branch pipe, n, into the interior of the inner cylinderabove the level of the water therein, and thence through the openings a3into the measuring-chambers, from which the gas ows out at the openingsa4 as they come above the water in the compartment of the meter in whichthe measuring-drum works, and thence by the outlet-pipe p.

The action of the meter is regulated by means of an inverted vessel, q,which is at one end of thele\f'erfraxne d d, and into which gas isconducted by the pipe o from the vlower chamber7 o, so that the gas inthe inverted vessel g is at the same pressure as it is in thesupply-chamber. The other end of the leverframe is Weighted andregulated or adjusted as heretofore when a similar frame and invertedvessel have been used.

Having thus described a gas-meter embodying our improvements, what Weclaim as our invention, and desire to secure by Letters Pat ent, is-

l. The combination, in a gas-meter, ot' an annular measuring-drum withan internal tloat to buoy up the drum in the liquid With which the meteris lled, substantially as dey scribed.

2. The combination of an annular measuringdrum and float, constituting aHeating measuring' drum, with a lever-frame connecting the axis ot' thedrum with fixed necks or axes which are in line with the axis ot' oneot' the wheels of the counting apparatus, so

.that the floating measuring-drum acts uni- H. H. KROMSUHROEDER. J. F.Gr. KROMSCHROEDER.

Witnesses GEO. Prr'r, SMIL. UARPMAEL, Bot/L of 24 SouthamptonBuildings', Chancery Laue.

